Ventilator



FIG. 1 is a top, left side and front perspective view of a ventilator,showing my new design wherein it is mounted on a roof;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof, the rear being a mirror imageof that shown;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top, left side and front perspective view of a ventilator,showing a second embodiment of my new design wherein it is mounted on awall;

FIG. 7 is a top plan view of FIG. 6, the bottom being a mirror image ofthat shown;

FIG. 8 is a front elevation view of FIG. 6;

FIG. 9 is a right side elevation view of FIG. 6; and,

FIG. 10 is a left side elevation view of FIG. 6.

The ornamental design for a ventilator, as shown and described.